I'll admit that we don't really know, just yet, if Annabelle the Doll, as seen in The Conjuring, is actually evil or if it's just a reasonable assumption based on her face – and, for that matter, just basic dollness. But then, you see, if you told me there was a horror film coming about a clown nobody would jump to the conclusion that the clown is actually the hero.
According to The Wrap, Annabelle Wallis and Ward Horton have been cast in the lead, human roles. Which is potentially confusing for idiots: Annabelle is in Annabelle but she's not playing Annabelle. Unless, of course, Annabelle possesses Annabelle.
Wallis was the girl in the pub that Charles flirted with in X-Men: First Class and recently had a decent role in Peaky Blinders. Horton has a little role in Wolf of Wall Street. This doll movie is a nice step up for both.
The film has been scripted by Gary Dauberman, who also wrote the in-development Burst and the haunted Queen Mary film. It's going to be directed by John Leonetti, James Wan's regular cinematographer. He should have picked up some tricks along the way, and if he shows good taste, I think the film could, at the very least, come off as creepy.